     body{
            background:#f3f3f3;
        }
        .outer-box{
            width: 854px;
            background: #fff;
            margin: 0 auto;
            overflow: hidden;
        }
        .logo-box{
            text-align: center;
            padding-top: 40px;
        }
        .logo-box img{
            width: 60px;
            height: 60px;
        }
        .page-title{
            text-align: center;
        }
        .sigin-box{
            width:300px;
            margin: 0 auto;
            padding-top: 50px;
        }
        .captcha-addon{
            padding: 0;
            overflow: hidden;
        }
        .captcha-img{
            width: 94px;
            height: 32px;
            cursor: pointer;
        }